Wrench.



I. DRAPGSATY.

WRENCH.

APPLIGATION FILED SBM-.21. 1914.

1 1 1 9,848. Patented Dec. 1, 1914 Fig.1. Fig.2.

Brumm/l@ 1 @NTFU @TATESLTENT FFCE.

' Ill/.IRE DRAPCSATY, OF BARBERTON, OHIO.

WRENCH.

Application filed September 21, 1914.

To all tti/20m t may concern Be it known that I, 1mm DnArosA'rY, subject of the Emperor of Austria-Hungary, residing at Barberton, in the county of Summit and State of Ohio, have invented certain new and useful Improvements in Wrenches, of which the following is a specification.

This invention relates to certain new and useful improvements in wrenches.

The primary object of the invention is to provide a slidable bolt-locking means for the movable jaw of a wrench whereby said jaw is locked in any relative positionl with respect to the handle-carried jaw and'is automatically releasable upon operating a spring catch device.

A further object is to provide a means for releasing the movable jaw member of a wrench for free actuation when desired, thr same being capable of being readily locked in any desired adjusted position.

A still further object is the provision of a housing hinged to a handle having a jaw at one end thereof and providing` a slidable jaw member within said housing adapted to `he locked in its adjusted position within said housing by means of a sliding `bolt while a releasable catchallows for the automatic release of the said movable jaw member.

lVith these general objects in view and others that will appear as the nature of the invention is better understood, the same consists in the novel combination and arrangement of parts to be hereinafter more fully described, illustrated inthe accompanying drawings and set forth in the appended claim.

In the drawing forming a part of this application and in which like-designating characters refer to corresponding parts throughout the several views, Figure 1 is a side elevation of the device partially broken away. Fig. 2 is a front elevation thereof. Fig. 3 is a central longitudinal section taken on line III- HI of Fig. 2, shmving the housing and locking bolt, the adjacent elements being shown in side elevation, and broken away. Fig. 4 is a transverse sectional view on line IV-IV of Fig. 1 taken centrally through the housing with the device in its locked position. Fig. 5 is a similar view taken on line IV-IV of Fig. 1 with the elements in their unlocked positions. Fig. G is a transverse sectional vieviT Specification of Letters Patent.

Patented Dee. 1, 1914.

Serial No. 862,769.

taken upon lines VI-VI of Fig. 1, and lF 7 is a perspective View of the locking Jo t.

Referring more in detail to the drawing, the handle 10 of the wrench is provided at one end with a serrated jaw 11 and has a housing 12 pivoted thereto by the pin` 13 which extends through the adjacent portion of the handle and through the opposite spaced extension plates 111 of the housing. A jaw 15 is movably mounted and is provided with a serrated face 1G positioned opposite the jaw 11 and has a shank 17 slidably positioned within the housing and between the plates l-l; thereof and also between the inner wall 18 of the housing and the adjacent edge 19 of the wrench handle. Opposite lingers 2O are secured to the jaw handle and project upon opposite sides of the jaw shank 17 acting as guides therefor, while a helical spring 21 is secured to the handle edge 19 and bears upon the adjacent edge of the shank 17 which tends to normally hold the two jaws resiliently toward ,ach other or in engagement with any work positioned therebetween.

r1`hc housing 12 is provided witn a transverse opening 22 therethrough and in which the bolt 23 is slidably positioned, one end thereof being adapted to project within the chamber' 24; of a laterally projecting easing 25 of the said housing, while the opposite end of the bolt is slidable through an opposite opening 26 of the housing. A lug 27 is carried by the housing and extends into a side slot 2S of the bolt and whereby the sliding inwardand outward movements of the bolt be limited. A helical expansion spring 29 is provided within the casing bore 24, and engages the inner end of the bolt, tending to normally hold the bolt projected in its unlocked position as shown in Fig. 5.

The jaw shank 1.7 is provided with a toothed outer face 30 and across which face the bolt is adapted to slide. The said bolt is provided upon substantially onehalf of its face which is adjacent to the said jaw shank with teeth 31 which engage the toothed face 30 of said shank when the bolt is positioned inwardly as illust ated in Fig. 4, and at which time as will be evident, the spring 29 will be compressed and the engagement of the teeth of the bolt with the toothed face of the movable jaw shank lock the said shank to the housing.

A socket 32 is provided in the bolt 23 upon inner end and slidably extending through a perforation 37 oit the housing, which perforation 37 connects the recess 36 with the housing opening rin expansion spring' 38 positioned beneath the pivoted plate 34 Vnormally holds the rod 33 projected inwardly and in engagement with the adjacent side of the bolt when the same is projected, but holds the same within the socket 32 when the bolt is inclosed and in its locked position.

F rom this detailed description of the in vention, it will be apparent that in the operation thereof, when the bolt is in its unlocked position as shown in Fig. 5, the shank of the jaw l5 may be freely moved longitudinally through the housing until the jaws are brought into engagement with the work, when a pressure vupon the outer end of the bolt moves the same inwardly compressing the spring 29 and engaging the teeth of the bolt with the toothed face of th-e shank which locks the wrench upon the work, and in which position the catch rod 33 engages the bolt socket 32 and retains the bolt so locked. When desired to release the bolt, the outer end of the catch plate 3J: is depressed for compressing the spring 38 and the catch rod is thus withdrawn from the bolt socket and the release of the bolt allows the spring 29 to project the same so that the untoothed surface or cut-away portion 39 of the bolt will be positioned adjacent the toothed face of the shank so that such shank will be released and may be freely moved longitudinally for again adjusting its jaw l5.

Vvlhile I have shown and described the preferred embodiments of my invention, minor changes may be made without departing from the spirit and scope of the invention as set forth in the claim.

`What l claim as new is:

A wrench comprising a handle, a housing, spaced plates upon said housing pivoted to said handle, a jaw shank slidably mounted between said plates and having a toothed :tace adjacent the inner side or" said housing, the said housing having a transverse opening therethrough opening into the space formed between the said plates, a hollow casing at one side of the housing having a chamber in alinement with said opening, a bolt positioned within said opening and chamber and slidably mounted therein, teeth projecting from a portion of the face of said bolt lying adjacent to said shank, the remaining portion of said bolt face being cut away, an expansion spring within said casing chamber engaging said bolt and normally projecting the same, the said bolt having a slot at one side and a socket in its opposite side, a lug carried by said housing and projecting within the said holt slot, the said housing having a side re.- cess therein and a perforation communicating' between said recess and the housing opening, a spring-pressed catch plate pivoted within said recess, and a catch rod hinged to the inner end of said catch plate and slidably positioned through thesaid perforation and adapted for entering the said bolt socket when the bolt is in its retracted locking position with its teeth engaging the Copies of this patent may be obtained for five cents each, by addressing the Commissioner of lPatents', Washington, D. C. 

